TY - JOUR AU - Alonso GarcĂ­a, Pilar PY - 2011 SN - 0305-7453 UR - http://hdl.handle.net/20.500.11940/6906 LA - eng TI - Spread of Escherichia coli O25b:H4-B2-ST131 producing CTX-M-15 and SHV-12 with high virulence gene content in Barcelona (Spain). DO - 10.1093/jac/dkq491 T2 - JOURNAL OF ANTIMICROBIAL CHEMOTHERAPY VL - 66 ER -